Formatting Blackline Masters



| |3 |2 |0 |

|Measurements are to the | | | |

|correct number of |All measurements |2 or 3 measurements |Less than 2 measurements |

|significant figures | | | |

|Units included |All measurements |2 or 3 measurements |Less than 2 measurements |

|Answers are within the | | | |

|range of acceptable error |All measurements |2 or 3 measurements |Less than 2 measurements |

|Measurements finished | | |Less than 2 measurements |

|within the prescribed time |All measurements |2 or 3 measurements | |

|limit | | | |

| |All safety rules followed | | |

|Questions |Answered |Answered incorrectly but supported by|Answered incorrectly. No supporting |

|Answered |correctly |evidence |evidence. |

[pic]

Figure 1 Figure 2 Figure 3

1. Determine the accuracy and precision represented by each group of darts in the figures above. Explain your choices using complete sentences.

| |Figure 1 |Figure 2 |Figure 3 |

|Precision? | | | |

|Accuracy? | | | |

2. A basketball player throws 100 free-throws; 95 of these balls go through the goal; 5 miss the goal entirely. Describe the precision and accuracy of the free-throws.

3. The same player is having an off day; 5 balls go through the goal; the other 95 balls bounce off of the rim. Describe the precision and accuracy of the throws.

[pic]

Figure 1 Figure 2 Figure 3

1. Determine the accuracy and precision represented by each group of darts in the figures above. Explain your choices using complete sentences.

| |Figure 1 |Picture 2 |Picture 3 |

|Precision? |Good |Poor None |Good All of |

| |All of the darts are grouped in |of the darts are grouped in the |the darts are grouped in the |

| |the same area. |same area. |same area. |

|Accuracy? |Poor |Poor |Good |

| |None of the darts are grouped in|Few of the darts are grouped in |All of the darts are grouped in |

| |the bull’s-eye. |the bull’s-eye. |the bull’s-eye. |

2. A basketball player throws 100 free-throws; 95 of these balls go through the goal; 5 miss the goal entirely. Describe the precision and accuracy of the free-throws.

The player has good precision and good accuracy because so many of the balls go through the goal.

3. The same player is having an off day; 5 balls go through the goal; the other 95 balls bounce off of the rim. Describe the precision and accuracy of the throws.

The player has good precision because so many balls bounce off the rim but poor accuracy because so few balls make it through the goal.

|Matter |Homogeneous |

|Pure Substance |Heterogeneous |

|Element |Mixture |

|Compound | |

|Muddy Water |Na |

|Solution |As |

|salt water |Cl |

|Metal |NaCl |

|nonmetal |Metalloid |

Elements, Compounds and Mixtures Concept Map

| |Homogeneous |Heterogeneous |Can be separated into |The properties of the |

| | | |individual components |individual components are |

|Sample: | | | |the same as properties of |

| | | | |the sample |

|Salt | | | | |

|Water | | | | |

|Copper | | | | |

|Salt and water | | | | |

|Copper and water | | | | |

| |Homogeneous |Heterogeneous |Can be separated into |The properties of the |

| | | |individual components |individual components are |

|Sample: | | | |the same as properties of |

| | | | |the sample |

|Salt |X | |X | |

|Water |X | |X | |

|Copper |X | | |X |

|Salt and water |X | |X |X |

|Copper and water | |X |X |X |

Conclusions:

1. Salt (NaCl) is a homogeneous material that can be decomposed into individual elements (sodium and chlorine). The properties of the salt differ from the properties of the elements. Salt is a compound.

2. Water (H2O) is a homogeneous material that can be decomposed into elements (hydrogen and oxygen). Water is a compound.

3. Copper is a homogeneous material that cannot be separated into components. Copper is an element.

4. Salt and water combine to form a homogeneous material that can be separated into parts. When the salt and water are mixed, their properties do not change. Salt water is a homogeneous mixture called a solution.

5. Copper shot and water not homogeneous because the copper and water are easily seen as individual parts. These parts can be separated easily. When the copper and water are mixed, their individual properties do not change. This is a heterogeneous mixture.

Each box has the same volume. If each ball has the same mass, which box would weigh more? Why?

Physical and Chemical Changes

Effervescent tablet in water

Observations

1. numerous bubbles formed as soon as tablet

touched the water

2. bubbles rose to top of water and burst

3. tablet disappeared

4. bubbles stopped forming

5. looks like nothing else is happening

Conclusion The bubbles contained a gas that escaped into the air. The tablet was a solid that underwent a chemical change with the water to produce the gas bubbles. Once the tablet (reactant) was used up, no more gas bubbles (products) were formed, and the reaction stopped. There has been a change in the identity of the material. It is no longer an effervescent tablet. The production of a gas is evidence of a chemical change (reaction) taking place.

Cutting a piece of paper

Observations

1. smaller pieces of paper are formed

Conclusion

The smaller pieces of paper are exactly like the original piece of paper (reactant). There has been no change in the identity of the material. It is still paper (product).

|1.01 H|4.00 | | | | |

| |He | | | | |

|Chemical bond | | | | | |

| | | | | | |

|Ionic bond | | | | | |

| | | | | | |

|Covalent bond | | | | | |

| | | | | | |

|Metallic bond | | | | | |

| | | | | | |

|Electronegativity | | | | | |

| | | | | | |

|Polar covalent bond | | | | | |

| | | | | | |

|Nonpolar covalent bond | | | | | |

|Formula unit | | | | | |

| | | | | | |

|Molecule | | | | | |

| | | | | | |

|Molecular formula | | | | | |

Write formulas for the following compounds:

1. copper (I) oxide _______________

2. aluminum hydroxide _______________

3. triphosphorus decasulfide _______________

4. zinc nitrate _______________

5. hydrobromic acid _______________

6. mercury (I) bromide _______________

7. boron tribromide _______________

8. sodium hydride _______________

9. barium perchlorate _______________

10. tetraphosphorus hexasulfide _______________

11. sulfuric acid _______________

12. calcium hypochlorite _______________

13. ammonium phosphite _______________

14. chromium (III) acetate _______________

15. hydrosulfic acid _______________

16. carbonic acid _______________

17. phosphorus pentafluoride _______________

18. cobalt (II) nitrate _______________

19. magnesium sulfate _______________

20. strontium phosphate _______________

21. dichlorine monoxide _______________

22. phosphorous acid _______________

23. disulfur dichloride _______________

24. iron (III) carbonate _______________

25. perchloric acid _______________

Write formulas for the following compounds:

1. copper (I) oxide __Cu2O_______

2. aluminum hydroxide __Al(OH)3_____

3. triphosphorus decasulfide __P3S10_______

4. zinc nitrate __Zn(NO3)2____

5. hydrobromic acid __HBr(aq)_____

6. mercury (II) bromide __HgBr2_______

7. boron tribromide __BBr3________

8. sodium hydride __NaH________

9. barium perchlorate __Ba(ClO4)2____

10. tetraphosphorus hexasulfide __P4S6________

11. sulfuric acid __H2SO4(aq)___

12. calcium hypochlorite __Ca(ClO)2____

13. ammonium phosphite __(NH4)3PO3___

14. chromium (III) acetate __Cr(C2H3O2)3_

15. hydrosulfic acid __H2S(aq)_____

16. carbonic acid __H2CO3(aq)___

17. phosphorus pentafluoride __PF5_________

18. cobalt (II) nitrate __Co(NO3)2____

19. magnesium sulfate __MgSO4______

20. strontium phosphate __Sr3(PO4)2____

21. dichlorine monoxide __Cl2O________

22. phosphorous acid __H3PO4(aq)___

23. disulfur dichloride __S2Cl2_______

24. iron (III) carbonate __Fe2(CO3)3___

25. perchloric acid __HClO4(aq)___

Name the following compounds.

1. K2SO4 ______________________________

2. N2O4 ______________________________

3. BaClO4 ______________________________

4. HNO2(aq) ______________________________

5. FE2(SO4)3 ______________________________

6. NH4F ______________________________

7. BaI2 ______________________________

8. CrO3 ______________________________

9. Cu(C2H3O2)2 ______________________________

10. Ag2CO3 ______________________________

11. NaOH ______________________________

12. Ca3(PO4)2 ______________________________

13. ClF3 ______________________________

14. K2SO3 ______________________________

15. AlBr3 ______________________________

16. MgCl2 ______________________________

17. HC2H3O2(aq) ______________________________

18. P2O5 ______________________________

19. FePO4 ______________________________

20. SrBr2 ______________________________

21. Al2S3 ______________________________

22. LiBr ______________________________

23. NH3 ______________________________

24. PbO2 ______________________________

25. MgO ______________________________

Name the following compounds.

1. K2SO4 __potassium sulfate______________

2. N2O4 __dinitrogen tetroxide____________

3. BaClO4 __barium perchlorate_____________

4. HNO2(aq) __nitrous acid__________________

5. Fe2(SO4)3 __iron (III) sulfate_______________

6. NH4F __ammonium fluoride____________

7. BaI2 __barium iodide_________________

8. CrO3 __chromium (IV) oxide___________

9. Cu(C2H3O2)2 __copper (II) acetate_____________

10. Ag2CO3 __silver carbonate_______________

11. NaOH __sodium hydroxide______________

12. Ca3(PO4)2 __calcium phosphate_____________

13. ClF3 __chlorine trifluoride_____________

14. K2SO3 __potassium sulfite_______________

15. AlBr3 __aluminum bromide_____________

16. MgCl2 __magnesium chloride____________

17. HC2H3O2(aq) __acetic acid___________________

18. P2O5 __diphosphorous pentoxide________

19. FePO4 __iron (III) phosphate____________

20. SrBr2 __strontium bromide_____________

21. Al2S3 __aluminum sulfide______________

22. LiBr __lithium bromide_______________

23. NH3 __ammonia____________________

24. PbO2 __lead (IV) oxide_______________

25. MgO __magnesium oxide_____________

Note: A represents the central atom in the molecule. B represents atoms bonded to the central atom. B can be identical atoms or different atoms.

Directions:

1. Find the other students who have the same color balloons as you. Have someone inflate a balloon as much as possible without popping it. Inflate your balloon(s) to the same size.

2. Using the patterns below, tie the appropriate number and color balloons together. For example, for the AB2E model, tie 2 blue balloons and a white balloon together. For groups of 4 balloons, it is easier to tie 2 balloons together and then the other 2 balloons together, then twist the two groups together. For five-balloon groups, make sets of 2 and 3 balloons and twist. For six balloons, use 3 sets of 2 balloons twisted together.

3. Attach a piece of string to hang the finished model from the ceiling.

|Type of Molecule |Number of Atoms Attached|Balloons Needed for Model |One colored balloon models|

| |to the Central Atom | |for electron pair |

| | | |geometries |

|AB2 |2 |2 pink |* |

|AB3 |3 |3 blue |* |

|AB2E |3 |2 blue, 1 white | |

|AB4 |4 |4 red |* |

|AB3E |3 |3 red, 1 white | |

|AB2E2 |3 |2 red, 2 white | |

|AB5 |5 |5 green |* |

|AB4E |4 |4 green, 1 white | |

|AB3E2 |3 |3 green, 2 white | |

|AB2E3 |2 |2 green, 3 white | |

|AB6 |6 |6 yellow |* |

|AB5E |5 |5 yellow, 1 white | |

|AB4E2 |4 |4 yellow, 2 white | |

|Number of lone pairs |Number of atoms |Electron Pair |Bond angle of |Type of Molecule |Molecular Geometry |Example |

|around the Central |attached to the |Geometry |electron pairs | |(Shape of the | |

|Atom |Central Atom | | | |molecule) | |

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|Number of lone |Number of atoms |Electron Pair Geometry |Bond angle of |Type of Molecule |Molecular Shape |Example of |

|pairs on the |attached to the | |Electron pairs | | |Molecule |

|Central Atom |Central Atom | | | | | |

|0 |2 |Linear |180( |AB2 |Linear |CO2 |

|0 |3 |Trigonal planar |120( |AB3 |Trigonal planar |BF3 |

|0 |4 |Tetrahedral |109.5( |AB4 |Tetrahedral |CH4 |

|1 |3 |Tetrahedral | ................
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